Seems like signal strength and beamforming antennas scanning for your cell phone gets it within 1 meter.
From: ch...@wbmfg.com Sent: Wednesday, February 26, 2020 10:50 AM To: af@af.afmug.com Subject: Re: OT bluetooth nav LocusLabs seems to have products for airports but they don’t describe their technology. Perhaps it is nothing more than a bunch of receivers with Doppler antennas on them triangulating signals. From: ch...@wbmfg.com Sent: Wednesday, February 26, 2020 10:46 AM To: af@af.afmug.com Subject: OT bluetooth nav Anyone know how location tracking of cell phones indoors works? I believe it is based on bluetooth. Works inside airports. I see Amazon using something similar for their cashless grocery store.
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